Piercing-sucking pests such as whiteflies, tobacco whiteflies, and aphids are at their peak of damage. Due to the suitable temperature and humidity, they reproduce very quickly. When they are serious, they have become the most widespread pests in autumn, causing the most damage to crops and causing the most serious damage. The traditional thinking mode of treating insects when they are seen and preventing diseases when they are seen is the main reason why whiteflies cannot be effectively controlled now. Today, I recommend to you the most effective prevention and control method, which saves labor and time, has a long effective period, and has a good control effect.
Reasons why aphids and whiteflies are difficult to treat
(1) Wide distribution range: Pests such as aphids, whiteflies, and tobacco whiteflies can harm more than 100 crops in 36 families, such as cotton, peppers, tomatoes, cucumbers, watermelons, pumpkins, zucchini, winter melons, soybeans, and beans, and have a wide distribution range.
(2) Strong migration ability: Whiteflies and Bemisia tabaci are Homoptera pests. Under suitable temperature conditions, they have strong migration ability and can migrate long distances.
(3) Fast reproduction speed: In summer and autumn, under suitable temperature and humidity conditions, one generation can be controlled in 5 to 7 days. The reproduction speed is amazing and the generation is serious. An aphid can reproduce 50 to 60 small aphids in a week. If the aphid matures and reproduces small aphids in 4 to 5 days, it can reproduce millions or tens of millions in a month. After spraying, the insect population is small, but the aphids that escape the net quickly form a large group due to the rich food.
(4) Increased resistance to pesticides: Whiteflies, Bemisia tabaci, aphids and other pests have strong resistance to pesticides. Generally, common pesticides can quickly develop resistance after being used more than 3 times, resulting in poor control effect.
(5) Unscientific control methods: The traditional control method is to treat the insects and diseases as soon as they are seen. Since whiteflies, whiteflies, and aphids reproduce too fast and have strong migratory ability, it is difficult to completely control them when they are seriously infected.
The most effective control method
According to experiments, soil treatment with 3% thiamethoxam is the most economical and effective method to control these piercing-sucking pests. It can be applied by spreading, hole application, and ditch application.
Thiamethoxam is a neonicotinoid insecticide, mainly used to control piercing-sucking pests such as aphids, whiteflies, and thrips. It has contact and stomach poisoning effects and excellent systemic properties. After being applied to the soil, it can exist in the soil for a long time, be absorbed by the roots or newly sprouted seedlings, and be transported upward to various parts of the plant body through the xylem in the plant body. It stays in the plant body for a long time and degrades slowly. At the same time, its degradation product, thiamethoxam, has higher insecticidal activity, achieving the purpose of continuous insecticide.
Applicable crops
It can be widely used in wheat, corn, cotton, peanuts, soybeans, cucumbers, watermelons, pumpkins, winter melons, tomatoes, eggplants, peppers, celery, cabbage and other crops.
Usage technology
(1) Broadcasting: Before sowing wheat, use 2-3 kg of 3% thiamethoxam slow-release granules per mu, mix with 15-20 kg of organic fertilizer, evenly spread and sow, or sow with seeds. The agent is slowly released, which can prevent and control the damage of piercing-sucking pests such as aphids and planthoppers for a long time, and the effective period can reach more than 120 days.
(2) Hole application: For crops that need to be raised and transplanted, such as tomatoes, peppers, eggplants, cucumbers, and watermelons, 1-2 kg of 3% thiamethoxam slow-release granules can be used at the time of sowing, mixed with 15 kg of organic fertilizer, and applied in holes during transplanting. It can also control the damage of piercing-sucking pests such as aphids, thrips, whiteflies, and whiteflies for a long time, and the effective period can also reach more than 120 days.
